Honeywell HPM, Service

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6 Removal and Replacement
6.10 Card File Replacement
R688 HPM High-Performance Process Manager Service 425
December 2020 Honeywell
6.10 Card File Replacement
Replacement procedure
Use the procedure in the following table to replace a card file.
SHOCK HAZARD
Troubleshooting, opening this equipment and removing any panels or covers will expose the
user to the risk of a shock hazard. There are no user serviceable parts inside this equipment.
Refer all servicing only to qualified service personnel .
Step Action
1
Disconnect all cables attached to the card file.
2
Remove the side plates connecting the card file to the card file above and/or below by
first removing the two screws at the inside of the panel.
3
Loosen, but do not remove, the four screws holding the card file to its supports.
4
Grasp the card file firmly and lift it about 1 cm (1/2 inch) to release the card file into
your hands.
5
Install the replacement card file in a reverse manner, making sure it is engaged by all
four mounting screws. Tighten the screws when the card file is in place. Reconnect the
cables that were disconnected in step 1.
6.11 Power System
Introduction
The subsections that follow describe the removal and replacement of major assemblies in the Power
System.
If all options are installed, most of the major assemblies in the Power System can be removed and
replaced while the HPM remains in operation because of Power Supply Module redundancy and battery
backup power. Observe all precautions mentioned in this text when replacing the Power System
components.
SHOCK HAZARD
Troubleshooting, opening this equipment and removing any panels or covers will expose the
user to the risk of a shock hazard. There are no user serviceable parts inside this equipment.
Refer all servicing only to qualified service personnel .
CAUTION
Batteries may contain toxic materials that are not biodegradable. Batteries should be disposed
of safely in accordance with local laws and regulations.
6.12 CMOS Battery Replacement
NiCad batteries
The three NiCad batteries that are installed in the Standard Power System to provide standby power for
the CMOS memory have a tendency to age over a period of time. Aging occurs even if the batteries have
been regularly recharged throughout their lifetime. For this reason, the NiCad batteries should be
replaced after every two years of operation.